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Radar, 18 Oct 2026

Today's edition highlights systems that build their own infrastructure, from agents mapping their own skill graphs to teachers writing reusable instructions for real-time execution.

PaperarXiv·14 Oct 2026·Training data

AdaRSI: On-Demand Recursive Self-Improvement for Embodied Agents

The loop: A coding agent identifies persistent failures in its executor model and generates its own fine-tuning data to improve that executor for future tasks.

An on-demand recursive self-improvement framework allows an embodied agent to attribute failures and fine-tune its own executor using self-collected demonstrations.

loop fit 9/10Peidong Wang, Ying Chang, Zhiming Ma et al.via arXiv
AdaRSI: On-Demand Recursive Self-Improvement for Embodied Agents
PaperarXiv·16 Oct 2026·Tools and harness

SkillDAG: Self-Evolving Typed Skill Graphs for LLM Skill Selection at Scale

The loop: An LLM agent proposes and commits execution-backed edges to its own skill graph as it works, improving its ability to retrieve and sequence skills for future tasks.

A retrieval framework exposes a typed skill graph to an LLM agent as a callable interface, allowing the agent to dynamically update the graph with new execution-backed relationships.

loop fit 9/10NeoHorse Team, Guoliang Cao, Guohao Dai, Tianyu Guo, Kai Han, Hailin Hu, Zihan...via arXiv
SkillDAG: Self-Evolving Typed Skill Graphs for LLM Skill Selection at Scale
PaperarXiv·16 Oct 2026·Tools and harness

The World Won't Wait: Evaluating and Teaching Agents Under a Live Clock

The loop: A slow teacher model studies failures in paused environments and writes reusable instructions that improve a fast student model's performance in real-time tasks.

A real-time benchmark evaluates agents while games continue running during inference, paired with an offline self-improvement method where a teacher model writes instructions to speed up a student model.

loop fit 9/10Junyao Yang, Zongxia Li, Yucheng Shi, Zhongzhi Li, Ruhan Wang, Ruiwen Zhou,...via arXiv
The World Won't Wait: Evaluating and Teaching Agents Under a Live Clock
PaperarXiv·14 Oct 2026·Self-reward and self-play

Explorer-Zero: Improving Self-Play for Long-Horizon Tasks with Decomposable Verifiable Rewards

The loop: A learned proposer explores an environment to generate tasks and verifiable rewards, which are used in alternating training to improve both the solver and the proposer itself.

A self-play framework jointly generates tasks and fine-grained verifiable rewards through environment interaction to train agents on long-horizon tasks without human annotations.

loop fit 9/10Junyi Zou, Avrova Donzvia arXiv
Explorer-Zero: Improving Self-Play for Long-Horizon Tasks with Decomposable Verifiable Rewards
PaperarXiv·14 Oct 2026·Self-reward and self-play

Terminal-RSI: Recursive Self-Improving Terminal Agents via Recursive Self-Rewrite and Policy-Refine

The loop: A terminal agent recursively rewrites its own verified trajectories and uses them for policy refinement, iteratively updating its weights across multiple stages.

A recursive self-improvement method alternates self-rewriting of verified trajectories with policy refinement to improve terminal agents on long-horizon tasks.

loop fit 9/10Ningxin Pan, Hanyu Li, Yeqing Shen et al.via arXiv
Terminal-RSI: Recursive Self-Improving Terminal Agents via Recursive Self-Rewrite and Policy-Refine
Blog postPyTorch·16 Oct 2026·Tools and harness

Bringing Elastically Deterministic Data Loading to TorchTitan with Zephon

The loop: The Zephon data loader improves the training process of models in TorchTitan, which makes the resulting models better or more efficiently trained.

Why Zephon? The data that a model sees during training is one of the most powerful levers we have for influencing how well it performs. Much of the day-to-day work... The post Bringing Elastically Deterministic Data Loading to TorchTitan...

loop fit 6/10Josh Wills, Maximilian Böther, Ties Robroek and the Zephon teamvia PyTorch
Bringing Elastically Deterministic Data Loading to TorchTitan with Zephon

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